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Lesson Plans |
Activities/Demos |
Homework |
Project |
Field Trips |
Assessment |
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CELL BIOLOGY
1. All living organisms are composed of cells, from just one to many trillions, whose details usually are visible only through a microscope. As a basis for understanding this concept: |
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Grade 7 Science 1a
1.a.Students know cells function similarly in all living organisms.
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BBC: AS Guru Biology: Cell Biology (Ted)
Cells Alive! (UCMP)
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Eploratorium: Bubble Suspension (cell wall): TedK
Garbage Bag Membrane (SJUSD: JimM): good osmosis simulaltion actvty
Science Museum of MN: Tissues of Life: Click 'Stem Cells'
Access Excellence: The Incredible, Edible Cell (TedK)
Exploratorium: Chick Embryo Develops (S. Rosenfeld)
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Science Museum of MN: Tissues of Life Virtual Exhibit Tour (TedK)
Exploratorium: Microscope Imaging Station (S. Rosenfeld)
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Osmosis & Web Quiz; Univ. SD (SJUSD EWYL)
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Lewis Thomas 'Lives of a Cell' (Ted)
CUNY osmosis tutorial
Paper Wad Diffusion: good diffusion simultn actvty
Cell-ebration Osmosis: USD blood cell pops osmosis animatn
str8-forward clean osmosis animation
GREAT microscopy, cells, pwr 10
great astrobiol. site
HRWpublisher demo clips of cell tutorials
spanspermia, nature of life
Univ Col good animatn bad layout/text
great photomicrographs
great astrobiol. site
good if a bit HS cell transport
Fantastic site for tissues/cells
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Grade 7 Science 1b
1.b. Students know the characteristics that distinguish plant cells from animal cells, including chloroplasts and cell walls.
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Cells Alive: Plant Cell Organelles (ref. from UCMP)
U.MN: Cells (NetTrekker: TedK)
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Exploratorium: Chloroplasts (Microscope Imaging Station): TedK
Science Museum of MN: Tissues of Life (SJUSD EWYL)
U. Hawaii: Micro-Angela; Electron Microscope Images of Cells (from Exploratorium: TedkK)
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Exploratorium: Cells (and associated phenomena) (TedK)
Exploratorium: Microscope Imaging Station--Chloroplasts (TedK)
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Cells & Organelles (U. Cincinatti): Ted/NetTrekker
Parts of a Cell - hyper-graphic (U. Minn.): Ted/NetTrekker
Plant Cell Organelles: Cells Alive: Ted/NetTrekker
Animal Cells (Cells Alive): Ted/NetTrekker
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Grade 7 Science 1c
1.c. Students know the nucleus is the repository for genetic information in plant and animal cells
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Cell Tutorial (U AZ)
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Grade 7 Science 1d
1.d. Students know that mitochondria liberate energy for the work that cells do and that chloroplasts capture sunlight energy for photosynthesis.
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Intro to Mitochondria & Chloroplasts (S. Rosenfeld)
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Exploratorium: Video of Elodea Leaf Cell Organelles Movement (S. Rosenfeld)
Exploratorium: Cell Explorer (S. Rosenfeld)
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Mitochondria & Chloroplasts--Quiz (S. Rosenfeld)
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Grade 7 Science 1e
1.e. Students know cells divide to increase their numbers through a process of mitosis, which results in two daughter cells with identical sets of chromosomes.
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Exploratorium: Microscope Imaging--Sea Urchin Mitosis (S.Rosenfeld)
Exploratorium: Microscope Imaging: Make Flipbook of Mitosis (S.Rosenfeld)
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Exploratorium: Microscope Imaging Station (S. Rosenfeld)
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Grade 7 Science 1f
1.f. Students know that as multicellular organisms develop, their cells differentiate.
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Science Museum of MN: Tissues of Life (SJUSD EWYL):
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CA Academy of Sciences: Astrobiology Exhibit (TedK)
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GENETICS
2. A typical cell of any organism contains genetic instructions that specify its traits. Those traits may be modified by environmental influences.
As a basis for understanding this concept:
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Grade 7 Science 2.a.
Students know the differences between the life cycles and reproduction methods of sexual and asexual organisms.
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UCMP: Asexual Repoduction (TedK)
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Grade 7 Science 2.b.
Students know sexual reproduction produces offspring that inherit half their genes from each parent.
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Howard Hughes Med. Institute: Bionteractive--Click Animations-> Meiosis (TedK)
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Tech Museum: Genetics Exhibit (S. Rosenfeld)
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Grade 7 Science 2.c.
Students know an inherited trait can be determined by one or more genes.
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The Tech: Understanding Genes (TedK, BethF)
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Tech Museum: Genetics Exhibit (S. Rosenfeld)
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Understanding Genetics Exhibit: The Tech (BF)
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Grade 7 Science 2.d.
Students know plant and animal cells contain many thousands of different genes and typically have two copies of every gene. The two copies (or alleles) of the gene may or may not be identical, and one may be dominant in determining the phenotype while the other is recessive.
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The Tech: It Runs in the Family: Genes & Human Differences (TedK)
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The Tech: What Color Eyes Would Your Children Have? (TedK)
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Tech Museum: Genetics Exhibit (S. Rosenfeld)
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Grade 7 Science 2.e.
Students know DNA (deoxyribonucleic acid) is the genetic material of living organisms and is located in the chromosomes of each cell.
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The Tech: DNA: The Instruction Manual (TedK)
DNA Interactive (Dolan DNA Learning Center): Teacher's Guide (PDF: TedK)
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The Tech: Zooming Into DNA (TedK)
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Scifair.org: Extract DNA for $4.95 (S. Rosenfeld)
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Tech Museum: Genetics Exhibit (S. Rosenfeld)
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EVOLUTION
3. Biological evolution accounts for the diversity of species developed through gradual processes over many generations. As a basis for understanding this concept:
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Grade 7 Science 3.a.
Students know both genetic variation and environmental factors are causes of evolution and diversity of organisms.
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This is a webquest designed to help students understand genetic disorders and the impact on ones life.
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Big Picture Book of Viruses (Tulane U): J.Diamond
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Grade 7 Science 3.b.
Students know the reasoning used by Charles Darwin in reaching his conclusion that natural selection is the mechanism of evolution.
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Complete overview of the science of natural selection (Mmelia)
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This is a very long and exceptional treatment of evolution. It is arranged in chapters or lessons that lead students through evolutionary theory and the mechanisms of evolution. It covers m
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Grade 7 Science 3.c.
Students know how independent lines of evidence from geology, fossils, and comparative anatomy provide the bases for the theory of evolution.
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Covers the use of morphology to explain evolutionary relationships and how branching diagrams describe those relationships (Mmelia)
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UCBerkeley Musm Paleontology fantastic
This is an excellent well though out step-by-step lesson that examines four basic lines of evidence (fossil evidence, homologies, distribution in time and space and evidence by exam
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Grade 7 Science 3.d.
Students know how to construct a simple branching diagram to classify living groups of organisms by shared derived characteristics and how to expand the diagram to include fossil organisms.
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Tree of Life Web Project (from Exploratorium: TedK)
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A class program from the Aquarium of the Bay (Barnowsky)
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fantastic phylogenetics site
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Grade 7 Science 3.e.
Students know that extinction of a species occurs when the environment changes and the adaptive characteristics of a species are insufficient for its survival.
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Several demo-labs of adaptation (NaomiE)
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EARTH AND LIFE HISTORY (Earth Sciences)
4. Evidence from rocks allows us to understand the evolution of life on Earth. As a basis for understanding this concept:
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Grade 7 Science 4.a.
Students know Earth processes today are similar to those that occurred in the past and slow geologic processes have large cumulative effects over long periods of time.
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Grade 7 Science 4.b.
Students know the history of life on Earth has been disrupted by major catastrophic events, such as major volcanic eruptions or the impacts of asteroids.
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Grade 7 Science 4.c.
Students know that the rock cycle includes the formation of new sediment and rocks and that rocks are often found in layers, with the oldest generally on the bottom.
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Grade 7 Science 4.d.
Students know that evidence from geologic layers and radioactive dating indicates Earth is approximately 4.6 billion years old and that life on this planet has existed for more than 3 billion years.
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Grade 7 Science 4.e.
Students know fossils provide evidence of how life and environmental conditions have changed.
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Grade 7 Science 4.f.
Students know how movements of Earth's continental and oceanic plates through time, with associated changes in climate and geographic connections, have affected the past and present distribution of organisms.
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Grade 7 Science 4.g.
Students know how to explain significant developments and extinctions of plant and animal life on the geologic time scale.
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STRUCTURE AND FUNCTION IN LIVING SYSTEMS
5. The anatomy and physiology of plants and animals illustrate the complementary nature of structure and function.
As a basis for understanding this concept:
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Grade 7 Science 5.a.
Students know plants and animals have levels of organization for structure and function, including cells, tissues, organs, organ systems, and the whole organism.
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Body Worlds
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Grade 7 Science 5.b.
Students know organ systems function because of the contributions of individual organs, tissues, and cells. The failure of any part can affect the entire system.
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The various human body organs and functions as featured in the BodyWorlds Exhbit and other supporting articles from the Tech Musuem will be shown to the students as a preview for this standard. (AAc
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The BodyWorlds 2 Exhibit
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Students must explain How do you understand the coordinated functions of the human body? (AAcosta)
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Grade 7 Science 5.c.
Students know how bones and muscles work together to provide a structural framework for movement.
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Grade 7 Science 5.d.
Students know how the reproductive organs of the human female and male generate eggs and sperm and how sexual activity may lead to fertilization and pregnancy.
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Grade 7 Science 5.e.
Students know the function of the umbilicus and placenta during pregnancy.
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Grade 7 Science 5.f.
Students know the structures and processes by which flowering plants generate pollen, ovules, seeds, and fruit.
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Grade 7 Science 5.g.
Students know how to relate the structures of the eye and ear to their functions.
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PHYSICAL PRINCIPLES IN LIVING SYSTEMS (Phyical Sciences)
6. Physical principles underlie biological structures and functions.
As a basis for understanding this concept:
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Grade 7 Science 6.a.
Students know visible light is a small band within a very broad electromagnetic spectrum.
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Grade 7 Science 6.b.
Students know that for an object to be seen, light emitted by or scattered from it must be detected by the eye.
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Grade 7 Science 6.c.
Students know light travels in straight lines if the medium it travels through does not change.
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Grade 7 Science 6.d.
Students know how simple lenses are used in a magnifying glass, the eye, a camera, a telescope, and a microscope.
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Grade 7 Science 6.e.
Students know know that white light is a mixture of many wavelengths (colors) and that retinal cells react differently to different wavelengths.
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Grade 7 Science 6.f.
Students know light can be reflected, refracted, transmitted, and absorbed by matter.
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Grade 7 Science 6.g.
Students know the angle of reflection of a light beam is equal to the angle of incidence.
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Grade 7 Science 6.h.
Students know how to compare joints in the body (wrist, shoulder, thigh) with structures used in machines and simple devices (hinge, ball-and-socket, and sliding joints).
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Grade 7 Science 6.i.
Students know how levers confer mechanical advantage and how the application of this principle applies to the musculoskeletal system.
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Grade 7 Science 6.j.
Students know that contractions of the heart generate blood pressure and that heart valves prevent backflow of blood in the circulatory system.
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INVESTIGATION AND EXPERIMENTATION
7. Scientific progress is made by asking meaningful questions and conducting careful investigations.
As a basis for understanding this concept and addressing the content in the other three strands, students should develop their own questions and perform investigations. Students will:
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Grade 7 Science 7.a.
Select and use appropriate tools and technology (including calculators, computers, balances, spring scales, microscopes, and binoculars) to perform tests, collect data, and display data.
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Fish Swarming: Web Simulation--Artificial Life (Ted)
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Grade 7 Science 7.b.
Use a variety of print and electronic resources (including the World Wide Web) to collect information and evidence as part of a research project.
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Grade 7 Science 7.c.
Communicate the logical connection among hypotheses, science concepts, tests conducted, data collected, and conclusions drawn from the scientific evidence.
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Grade 7 Science 7.d.
Construct scale models, maps, and appropriately labeled diagrams to communicate scientific knowledge (e.g., motion of Earth's plates and cell structure).
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Artificial Life: New method of computer modeling/simulation of life/systems (Ted)
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Grade 7 Science 7.e.
Communicate the steps and results from an investigation in written reports and oral presentations.
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